Application that crashed: kontact
Version of the application: 4.3.0 pre
KDE Version: 4.2.90 (KDE 4.2.90 (KDE 4.3 Beta2))
Qt Version: 4.5.1
Operating System: Linux 2.6.30-9-generic x86_64
Distribution: Ubuntu karmic (development branch)

What I was doing when the application crashed:
The network wasn't fully up yet (sometimes my interface will appear up but no packets'll route for a minute after), so I hit cancel on the syncs that were trying to take place.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#5  0x00007fbe61ab2454 in QMetaObject::activate (sender=0x3709dd0, m=<value optimized out>, local_signal_index=1, argv=0x7fff2e727460) at kernel/qobject.cpp:3190
#6  0x00007fbe634c5f50 in KPIM::ProgressItem::progressItemProgress (this=0x7fbe63743900, _t1=0x3709dd0, _t2=50) at ./progressmanager.moc:104
#7  0x00007fbe4cb7aa05 in KMAcctImap::postProcessNewMail (this=0x1f234a0, folder=0x1f18960) at ../../libkdepim/progressmanager.h:141
#8  0x00007fbe4cb7baef in KMAcctImap::qt_metacall (this=0x1f234a0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff2e727860) at ./kmacctimap.moc:85
#9  0x00007fbe61ab174c in QMetaObject::activate (sender=0x1f18a70, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x5) at kernel/qobject.cpp:3120
#10 0x00007fbe4caebf92 in FolderStorage::numUnreadMsgsChanged (this=0x7fbe63743900, _t1=0x1f18960) at ./folderstorage.moc:280
#11 0x00007fbe4cb8cfde in KMFolderImap::slotStatResult (this=0x7fbe63743900, job=0x5) at ../../kmail/kmfolderimap.cpp:2200
#12 0x00007fbe4cba0017 in KMFolderImap::qt_metacall (this=0x1f18a70, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff2e727ae0) at ./kmfolderimap.moc:190
#13 0x00007fbe61ab174c in QMetaObject::activate (sender=0x1f4ea70, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x5) at kernel/qobject.cpp:3120
#14 0x00007fbe61e85ca2 in KJob::result (this=0x7fbe63743900, _t1=0x1f4ea70) at ./kjob.moc:188
#15 0x00007fbe61e8601f in KJob::emitResult (this=0x1f4ea70) at ../../kdecore/jobs/kjob.cpp:304
#16 0x00007fbe5ff1ddb3 in KIO::SimpleJob::slotFinished (this=0x1f4ea70) at ../../kio/kio/job.cpp:477
#17 0x00007fbe5ff1e922 in KIO::StatJob::slotFinished (this=0x1f4ea70) at ../../kio/kio/job.cpp:823
#18 0x00007fbe5ff1d6c5 in KIO::StatJob::qt_metacall (this=0x1f4ea70, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff2e727dd0) at ./jobclasses.moc:234
#19 0x00007fbe61ab174c in QMetaObject::activate (sender=0x46aca00, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x5) at kernel/qobject.cpp:3120
#20 0x00007fbe5ffdd8b1 in KIO::SlaveInterface::dispatch (this=0x46aca00, _cmd=104, rawdata=@0x7fff2e728020) at ../../kio/kio/slaveinterface.cpp:175
#21 0x00007fbe5ffda263 in KIO::SlaveInterface::dispatch (this=0x46aca00) at ../../kio/kio/slaveinterface.cpp:91
#22 0x00007fbe5ffcd322 in KIO::Slave::gotInput (this=0x46aca00) at ../../kio/kio/slave.cpp:322
#23 0x00007fbe5ffcf32c in KIO::Slave::qt_metacall (this=0x46aca00, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff2e728190) at ./slave.moc:76
#24 0x00007fbe61ab174c in QMetaObject::activate (sender=0x382a750, from_signal_index=<value optimized out>, to_signal_index=<value optimized out>, argv=0x5) at kernel/qobject.cpp:3120
#25 0x00007fbe5feec087 in KIO::ConnectionPrivate::dequeue (this=0x44c35e0) at ../../kio/kio/connection.cpp:82
#26 0x00007fbe5feec1ad in KIO::Connection::qt_metacall (this=0x382a750, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x2a90180) at ./connection.moc:73
#27 0x00007fbe61aab999 in QObject::event (this=0x382a750, e=0x497ec60) at kernel/qobject.cpp:1118
#28 0x00007fbe623b327c in QApplicationPrivate::notify_helper (this=0x15db6b0, receiver=0x382a750, e=0x497ec60) at kernel/qapplication.cpp:4057
#29 0x00007fbe623ba54e in QApplication::notify (this=0x7fff2e728b50, receiver=0x382a750, e=0x497ec60) at kernel/qapplication.cpp:4022
#30 0x00007fbe63010c16 in KApplication::notify (this=0x7fff2e728b50, receiver=0x382a750, event=0x497ec60) at ../../kdeui/kernel/kapplication.cpp:302
#31 0x00007fbe61a9c20c in QCoreApplication::notifyInternal (this=0x7fff2e728b50, receiver=0x382a750, event=0x497ec60) at kernel/qcoreapplication.cpp:610
#32 0x00007fbe61a9ccdc in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=<value optimized out>, data=0x15a4c60)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:213
#33 0x00007fbe61ac4ef3 in postEventSourceDispatch (s=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#34 0x00007fbe5b8b18fe in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#35 0x00007fbe5b8b4fd8 in ?? () from /usr/lib/libglib-2.0.so.0
#36 0x00007fbe5b8b5100 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#37 0x00007fbe61ac4b66 in QEventDispatcherGlib::processEvents (this=0x15a4850, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:324
#38 0x00007fbe6244755e in QGuiEventDispatcherGlib::processEvents (this=0x7fbe63743900, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#39 0x00007fbe61a9ab12 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#40 0x00007fbe61a9aee4 in QEventLoop::exec (this=0x7fff2e728a90, flags=) at kernel/qeventloop.cpp:200
#41 0x00007fbe61a9cf89 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#42 0x0000000000403f27 in main (argc=<value optimized out>, argv=<value optimized out>) at ../../../kontact/src/main.cpp:218

Reported using DrKonqi